Houston is one of two beloved veteran acts, joining the Beach Boys, that return to the AC chart.
With the advance, Perry ties Kelly Clarkson  and Sheryl Crow  for the most top 10s among women in the chart's 16-year history. Here's a look at the women to make the most visits to the Adult Pop Songs top 10. (With 14 top 10s, Goo Goo Dolls lead all acts.)
VOICES CARRY: A capella quintet Pentatonix  translates exposure on NBC's "The Sing-Off" to Billboard 200 success, as its seven-song EP "PTX: Volume 1" soars in at No. 14. The set includes covers of the Hot 100 No. 1s "Somebody That I Used to Know" by Gotye  and "We Are Young" by fun  and Nicki Minaj's No. 5-peaking "Starships."
Pentatonix follows in the chart footsteps of such previous all-vocal acts as Bobby McFerrin, whose album "Simple Pleasures" reached No. 5 on the Billboard 200 in 1988, powered by his Hot 100 No. 1/pop culture anthem "Don't Worry, Be Happy"; the Nylons; Take 6; and, more recently, Straight No Chaser, whose "With a Twist" debuted and peaked at No. 29 in 2010.
Pentatonix won the third season of "The Sing-Off" last year. Members Mitch Grassi, Scott Hoying and Kirstie Maldonado originated the act at Martin High School in Arlington, Texas. After a local radio show staged a competition to meet the cast of Fox's "Glee," the trio sent in a version of Lady Gaga and Beyonce 's "Telephone." Though it didn't win, the threesome was encouraged expand, adding singers Avi Kaplan and Kevin Olusola.
"Pentatonix is a scale, widely used in all types of music," Olusola explains , noting that the scale's five notes aptly match the group's membership.
"It's normally 'pentatonic' scale," adds Hoying. "We added the 'x' to make it cooler."
Kaplan says that despite its complete total reliance on vocal acrobatics, Pentatonix considers itself as complete as any group. "We would like to be seen as a regular band … that just happens to use our voices as our instruments."
MAYBERRY MISSED: While the passing of Andy Griffith Tuesday (July 3) elicited many memories of his acting career, including his signature TV roles on "The Andy Griffith Show" (1960-68) and "Matlock" (1986-95), the beloved icon likewise forged a music career that led to appearances on Billboard charts.
Having first recorded country music in the '60s, Griffith at last became a regular on the Christian Albums chart in 1996, when "I Love to Tell the Story: 25 Timeless Hymns" reached No. 2 in a 78-week chart run. He added three more top 10s on the tally through 2005.
Griffith likewise made his mark on country in recent years. In 2004, Rascal Flatts  topped Country Songs with "Mayberry," an ode to the fictional town in which Griffith served as sheriff on "The Andy Griffith Show." "I miss Mayberry, sitting on the porch drinking ice cold Cherry Coke, where everything is black and white," the group sings.
In 2008, Griffith again put his stamp on the format thanks to a No. 1 on Country Songs on which he didn't even sing. He joined Brad Paisley  in the touching video for "Waitin' on a Woman," the fifth Country Songs leader from Paisley's album "Fifth Gear."
Griffith speaks several of the song's lyrics in the clip. "Boy, it's just a fact of life; it'll be the same with your young wife. Might as well go on and get used to it, waitin' on a woman," Griffith's character advises his co-star.
"I've read somewhere statistics show the man's always the first to go, and that makes sense, 'cause I know she won't be ready," the song closes. "So, when it finally comes my time and I get to the other side, I'll find myself a bench, if they've got any. I hope she takes her time, 'cause I don't mind waitin' on a woman."